Case Study: Siam Kraft Board Mill reduces fiber consumption and solves shadow marking with Valmet Press Roll Cover PK

Siam Kraft Board Mill reduces virgin fiber from 24 to 19 gsm with Valmet

Siam Kraft Board Mill, part of SCGP in Thailand, was facing a persistent problem with shadow marking on their PM9 paper machine. This issue was preventing the mill from meeting its goals for sustainability and cost-effectiveness, as it led to excessive fiber consumption and higher operating costs. They challenged their vendor, Valmet, to provide a solution that would improve both press section performance and sustainability.

Valmet's service experts executed a three-step plan, which included studies and the redesign of the suction press roll cover using a Valmet Press Roll Cover PK. This solution solved the shadow marking problem. The results were significant: consumption of virgin fiber was reduced from 24 to 19 gsm, total fiber consumption decreased, and maintenance intervals for calender roll grinding were extended from 30 to 40 days. Valmet's intervention helped the mill achieve its sustainability and cost-effectiveness goals.

Siam Kraft Board Mill